Getting rid of MTS (Malaysian Trumpet Snails)

["Dennis Heltzel" <dennis at fishroom_net>]

I removed all the gravel (and most of the MT snails) from a tank and was
going to just dump the gravel, when it occured to me that they might be
susceptible to freezing. Has anyone ever tried freezing gravel (easily
done here this time of year) to kill the snails ? I understand that people
have tried bleach, but the snails remain in their shells, impervious to
the bleach. Cold however, would penetrate the shells quite easily. If they
can survive freezing, then they are obviously a real danger if released
accidentally, if not, then freezing would be an effective sterilant for
MTS.

Dennis in cold Pennsylvania




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